Investigation of the phase separation in superconducting regions of La2CuO4+δ
✍ Scribed by E.L. Vavilova; N.N. Garif'yanov; E.F. Kukovitsky; G.B. Teitel'baum
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 462 KB
- Volume
- 264
- Category
- Article
- ISSN
- 0921-4534
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In this work the electrochemical intercalation of oxygen in La 2 CuO 4 phases has been studied. Oxygen intercalation has been performed at different anodic potentials for fixed time in alkaline solution (1 M NaOH) at room temperature. The electrochemistry of the phenomena taking place at the oxide-s
We report a phase separation study on high-quality single crystals of La2CuO4+x for two concentrations x= 0.03 and x= 0.04. The excess oxygen was loaded into the crystals at high oxygen pressure p= 3 kbar and temperature T= 650-700°C. The X-ray diffraction study of these crystals shows the presence